Pipe-cutter.



No. 766,844. PATENTED AUG. 9, 1904 A. RODEFBLD & A. H. RODEPELD. JR.

PIPE CUTTER. APPLICATION FILED MAY14,1904.

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UNITED STATES Patented August 9, 1904.

PATENT OFFIC AUGUST RODEFELD AND AUGUST H. RODEFELI), JR, OF RICHMOND,INDIANA.

PIPE-CUTTER.

SPECIFICATION forming part of Letters Patent N 0. 766,844, dated August9, 1904.

Application filed May 14, 1904.

To all, whom it may concern.-

Be it known that we, AUGUST Ronnnnnn and AUGUST H. RoDnEELn, J12,citizens of the United States, residing at Richmond, in the county ofWayne and State of Indiana, have invented certain new and usefulImprovements in Pipe-Cutters; and we do declare the following to be afull, clear, and exact description of the invention, such as will enableothers skilledin the art to which it appertains to make and use thesame, reference being had to the accompanying drawings, and to thefigures of reference marked thereon, which form a part of thisspecification.

This invention relates to pipe-cutters and is an improvement over thepipe-cutter shown and described in Patent No. 598,159, granted to A.Rodefeld February 1, 1898.

The object of the present invention is to increase the range ofusefulness of the said pipecutter heretofore patented; and to this endthe present invention relates to means for changing the position of thecutting-wheels on the movable jaw so as to operate upon a greatervariety of pipes or pipes of different diameters than heretoforepossible; and, further, the present improvements relate to the movablenut on the operating-handle, with such changes that enable a changing ofthe cutter from large to small pipes and vice versa with greaterfacility.

Preceding a detail description of the invention reference is made to theaccompanying drawings, of which- Figure 1 is a side elevation of ourimproved pipe-cutter. Fig. 2 is a side elevation of the movable jawdetached. Fig. 3 is a top plan view of the movable jaw as shown in Fig.1, the handle appearing in section. Fig. 4 is a detached plan view ofthe reversible arm removed from Fig. 1. Fig. 5 is a top plan View of thearm removed from Fig. 2.

In a detail description of the invention similar reference charactersindicate corresponding parts.

. 1 and 2 respectively designate the stationary and movable jaws of thecutter, which are bifurcated, as shown in Fig. 3, and are Serial No.207,907. (No model.)

opening which receives the end 7 of the operating-handle 28, said endbeing held by a nut 8, which screws onto the extreme end of said handle.This connection between the end? of the handle and the end of the jaw 2is such that permits the handle to be turned and the jaw 2 to swing uponthe trunnions 5 when not in operation.

9 designates two non-adjustable cuttingwheels mounted in the jaw 2 andengaging one side of a pipe 10. The jaw 1 may contain one cutting-wheel11, as shown in Figs. 1 and 1, or it may contain two cutting-wheels 12,as shown in Fig. 2, according to the diameter or size of pipe to beoperated upon.

13 designates a reversible arm, which is pivoted between the sides ofthe jaw 1 by means of a pivot-pin 18. This arm supports the cuttingwheel11 between trunnions 1 1, which are integral parts of said arm. The armis reversible to change the position of the cutting-wheel 11 accordingto the diameter of pipe, thus making a three-wheel cutter suitable for agreater vari ety of pipes than heretofore. As shown in Fig. 1, thecutting-wheel 11 is adj ustcd to a position to take in the greatestdiameter of pipe. In the smallest diameter of pipe the position of thecutting-wheel 1 1 is reversed to that shown in dotted lines. Whenin'either of the positions shown, the trunnions 14 enter recesses 19 and19 on the inner edges of the jaw 1, and the cutting-wheel 11 is held insuch positions by a spring 16, which lies within recesses 15 in thesides of the arm 13, and thus exerts a pressure to keep said arm ineither position. The spring 16 is secured at one end in a lug 17, thatjoins the two sides of the jaw l.

20 designates a different form of arm, which is adapted to hold twocutting-wheels 12 and which is pivotally supported at its center in thejaw 1 by a pin 21. By the application of this form of arm with twocutting-wheels the implement is transformed into a four-wheel cutter andis designed to operate upon the largest diameter of pipe-say from sixinches upwardthe four cutting-wheels 9 and 12 spanning the larger sizesof pipe on opposite sides more effectively than a pipe-cutter having aless number of cutting-wheels. In operating the pipe-cutter as afour-wheel cutter the arm 20 readily enables the cutting-wheels 12 tolocate at proper points on the circumference of the pipe, and the pipeis gripped at four opposite points in a most substantial manner. The jaw1 is, as heretofore, provided with hooks or recesses 22, which engagetrunnions 23, 24:, and 25, projecting from opposite sides of anelongated nut 26, which nut engages the screw-threaded portion 27 of theoperating-handle 28. By means of this elongated nut 26 with the threetrunnions projecting from opposite sides thereof throughout the lengthof said nut the jaw 1 may be locked with either set of trunnions,according to the diameter of pipe. For example, the

cutter, as shown in Fig. 1, is now operating upon a pipe of the largestdiameter. Consequently the jaw 1 is locked with the outermost set oftrunnions 23. In operating upon a pipe of the smallestdiameter the saidjaw would be locked with the innermost trunnions 25 and thecutting-wheel 11 would be reversed in its position or shifted to aposition to cause the trunnions lt to engage the recesses 19', thusbringing the said cuttingwheel in a position approximately in line withthe space between the two lower cuttingwheels 9 9 in order that the pipeoperated upon may be firmly held between the three wheels.

Having described our invention, we claim- 1. In a pipe-cutter, anoperating-handle screw-threaded a portion of its length, a stationaryjaw and a movable jaw pivotally connected, the stationary jaw having apermanent connection with said handle, and the movable jaw having hooksupon its free end, an elongated nut upon the screw-threaded portion ofsaid handle, a plurality of trunnions projecting from said elongated nutthroughout the length thereof and adapted to engage the hooked ends ofthe movable jaw to hold the cutter for different sizes of pipes.

2. In a pipe-cutter, an operating-handle screw-threaded a portion of itslength, a stationary jaw pivoted to said handle, said jaw supportingnon-adjustable cutting-wheels, a movable jaw, a pivotal arm on saidmovable jaw, said arm supporting a cutting-wheel, and an elongated nuton the screw-threaded portion of'the operating-handle, said nut having aplurality of trunnions projecting laterally therefrom throughout itslength, said trunnions engaging the free end of the movable jawaccording to the diameter of the pipe operated upon.

3. In a pipe-cutter, an operating-handle screw-threaded a portion of itslength, an elongated nut on said screw-threaded portion, said nut havinga plurality of trunnions project- 1 ing laterally therefrom throughoutits length, .a stationary jaw swiveled to said handle, cutting-wheels onsaid jaw, a movable jaw adapted to interlock with different sets oftrunnions on said elongated nut to increase or decrease the diameter ofthe opening between the jaws,

and a reversible arm mounted on said movable aw, said arm supporting acutting wheel which is reversible as to its position.

4. In a pipe-cutter, a stationary and a movable jaw, the latter havingrecesses in its inner side, a reversible arm mounted in said movablejaw, said arm having trunnions which venter said recesses in saidreversed positions,

